On Fri, Jan 25, 2019 at 9:41 PM Richard Wordingham via Unicode < unicode@unicode.org> wrote:
> To quote TUS: > > "A few may modify the following letter, and some may serve as a > independent letters". > > Bear in mind that one of the uses of U+02BC is the scholarly > representation of a glottal stop, especially in Arabic names. > Okay, so this legitimises the use of U+02BC (with its better word-breaking properties) for the apostrophe marking elision in Ancient Greek even though U+2019 is stated as the preferred character _in general_ for the apostrophe. On balance, this would seem to suggest U+02BC can (and perhaps should) be used for the specific purpose in Ancient Greek. (Of course, the other character that comes up is U+1FBD, but there the consensus seems strong that this is just plain wrong.) Thank you all. James